Heater box blower motor options?

Anybody know where a guy can buy a VDO PM337 heater blower motor for an A-body? It seems to be the only one that was built with the wire leads coming out of the case on the shaft end and is not available anywhere that I can find. Or is there another replacement that I am missing? The heater box is from a 67 Dart non a/c.

https://www.amazon.com/dp/B000C7OXZO/?tag=fabo03-20